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1. 发明授权

US07357631B2 Apparatus for placing mold charges in a compression molding machine 失效
标题翻译：将模具放置在压缩成型机中的装置
公开(公告)号：US07357631B2
公开(公告)日：2008-04-15
申请号：US11431797
申请日：2006-05-10
申请人： Wendell D. Willingham , Daniel L. Mattice , David C. Thompson , B. Jack Rote
发明人： Wendell D. Willingham , Daniel L. Mattice , David C. Thompson , B. Jack Rote
IPC分类号： B29C43/34
CPC分类号： B29C43/34 , B29C31/048 , B29C31/065
摘要： An apparatus for placing mold charges into a mold of a compression molding machine includes at least one mold charge pick-up cup for receiving a severed charge of molten plastic, a vacuum source for applying a vacuum to the pick-up cup to retain the mold charge in the cup, and a source of gas (such as air) under pressure for periodically applying gas to the cup to release the mold charge from the cup. In one exemplary embodiment, the vacuum source applies a continuous vacuum to the cup, and the source of gas under pressure periodically applies gas to the cup to overcome the continuous vacuum at the cup. In another exemplary embodiment, vacuum and gas under pressure, are alternately applied to the cup. The vacuum source preferably includes a vacuum generator coupled to the source of gas under pressure for generating the vacuum to be applied to the cup. The vacuum source preferably includes a vacuum pump coupled to the source of gas under pressure for generating the vacuum to be applied to the cup. The source of gas under pressure preferably includes a valve for periodically applying gas under pressure to the cup. The apparatus preferably includes a carrier for moving the cup from a source of severed charges of molten plastic to the mold of the compression molding machine, with the cup, the vacuum pump and the valve preferably being mounted on the carrier. The vacuum source preferably includes a vacuum limiter that also is mounted on the carrier.
摘要翻译：一种用于将模具电荷放置到压缩成型机的模具中的装置包括至少一个用于接收熔融塑料的断开装料的模具充电拾取杯，用于将真空施加到拾取杯以保持模具的真空源在杯中充电，以及在压力下的气体源（例如空气），用于周期性地向杯子施加气体以从杯中释放模具装料。在一个示例性实施例中，真空源对杯施加连续的真空，并且在压力下的气体源周期性地将气体施加到杯子以克服杯子处的连续真空。在另一示例性实施例中，在压力下的真空和气体交替地施加到杯子。真空源优选地包括在压力下耦合到气体源的真空发生器，用于产生要施加到杯子的真空。真空源优选地包括在压力下耦合到气体源的真空泵，用于产生要施加到杯子的真空。在压力下的气体源优选地包括用于在压力下周期性地将气体施加到杯子的阀。该装置优选地包括用于将杯从熔融塑料的切断装料的源移动到压缩成型机的模具的载体，杯，真空泵和阀优选地安装在载体上。真空源优选地包括也安装在载体上的真空限制器。

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